Can't build AdminUI properly

[lucatk]

Bug report

Describe the bug

I'm trying to contribute to the project. I wanted to try out some changes on the admin-ui.
I've read the contributing guidelines.

To Reproduce

Steps to reproduce the behaviour. Please provide code snippets or a repository:

1. git clone project
2. Ran yarn
3. Ran yarn in packages/app-admin-ui
4. Made changes to app-admin-ui
5. Ran yarn build
6. Substituted @keystonejs/app-admin-ui package in my project for my local version (using yarn add PATH_TO_LOCAL_CLONE/packages/app-admin-ui
7. Ran yarn start:dev, navigated to admin UI in browser
8. See error

Expected behaviour

The admin UI to work.

Screenshots

System information

• OS: macOS Catalina
• Browser (if applies): Google Chrome 80.0.3987.163

Additional context

The build and KeystoneJS startup seems to work like normal (no errors)

[Vultraz]

The way I've been contributing is via running one of the demo projects. They're symlinked to the packages in /packages, so you can clone the monorepo and test out your changes that way.

1. Clone repo and create your branch.
2. Make changes directly to `packages/app-adminu-i/
3. In root package.json, change the demo script to "demo": "yarn --cwd ./demo-projects", (needed because of yarn dev broken #2632 )
4. Run yarn dev to launch the default demo (Todo List) to test your changes, or yarn demo $demoName dev to pick another.

[gautamsi]

@Vultraz you can use your own project inside keystone folder structure using a projects folder. see #1832

[Vultraz]

....huh! That I did not know. 😱

[MadeByMike]

@lucatk this is likely because of the workspace configuration. There are ways around it but a better way would be to edit the admin-ui package directly on your own branch. Copy it somewhere if you'd like to reference the code. Also hit my up on the slack https://community.keystonejs.com/ if you'd like some help